Thanks for your response! On Thursday, April 21, 2016 at 6:51:11 AM UTC-7, mickeyf wrote: > > The fact that the USB Gadget IP address shows up and that you can connect > via ssh indicates that the OS is basically working. You may not have > corrupted anything, but are simply not using the right password (which I > don't remember either, but which I do remember was either non-intuitive or > hard to track down....) > > In the real world, BBBs and other devices will experience unexpected and > unplanned power outages, should be designed, and up to a reasonable point > are designed to survive them. I have both intentionally and unintentionally > rudely removed power from BBBs many, many times (hundreds?) with no ill > effects. > > On the other hand, I do recall a certain 4 year old famously saying 'But > I've run out in the street lots of times and never been hit by a car, > Daddy!" You may want to avoid tempting fate unnecessarily. > > In any case it is certainly quicker and easier to reflash a BBB than to, > for example, rebuild an entire hard drive and reinstall a recent version of > Windows on it. > > On Wednesday, April 20, 2016 at 9:52:58 PM UTC-7, William Hermans wrote: >> >> *Hey William,* >>> >>> *Yes, that's all very clear in hindsight. I do wish that I had looked up >>> how to turn it off properly before I made the mistake. * >>> >>> *Thank you for the clarification on the kernel. It's hard to find >>> up-to-date info.* >>> >>> *-Nate* >>> >> >> Ok, so now that we have that clear ;) hehe. >> >> You have to treat this like you would any other computer. Except perhaps >> the beaglebone is more fragile. Due to hardware costs, and the fact that >> the software, that is specific to the beaglebone is written by various >> members of the community. Who by the way do not get paid to do that. >> >> But you would shut down the BBB the same way you would shutdown your >> laptop from the command line. >> >> $ sudo shutdown now -h >> >> *or* >> >> $ sudo halt >> >> There is also a button closest to the ethernet jack which triggers an NMI >> through the PMIC, which should signal the processor to cleaning shut down >> linux. The button furthest from the ethernet jack on the same side ( left ) >> if I remember correctly is the reset button. So make sure not to press that >> while the OS is running either. The effect would be similar to pulling the >> power. >> >> On Wed, Apr 20, 2016 at 9:38 PM, Nathan Wheeler <[email protected]> >> wrote: >> >>> Hey William, >>> >>> Yes, that's all very clear in hindsight. I do wish that I had looked up >>> how to turn it off properly before I made the mistake. >>> >>> Thank you for the clarification on the kernel. It's hard to find >>> up-to-date info. >>> >>> -Nate >>> >>> On Wednesday, April 20, 2016 at 9:15:44 PM UTC-7, William Hermans wrote: >>>> >>>> So, question. If you removed the battery from your laptop, and then ran >>>> your laptop with no battery, an just yanked the power cord out of the wall >>>> to shut it down. What do you think would happen ? It's the same >>>> difference, >>>> except it would possibly take many more attempts at corrupting you laptop, >>>> before it did actually corrupt the file system. >>>> >>>> Also, it's running Debian wheezy with a 3.8.x kernel, not Angstrom. >>>> Just so you know. RevC's all came with a *bone-47* 3.8 kernel. >>>> >>>> On Wed, Apr 20, 2016 at 9:04 PM, Nathan Wheeler <[email protected]> >>>> wrote: >>>> >>>>> Hey all, >>>>> >>>>> I did a search - maybe someone is better at it than I am and could >>>>> help connect me to an explanation/solution? Anyway, here's what has >>>>> happened: >>>>> >>>>> I got my board in the mail yesterday and connected it to my new >>>>> MacBook Pro Retina (running OSX 10.11.3). I was able to ssh over USB >>>>> after >>>>> installing the included drivers and write/run code on the board. I didn't >>>>> write anything special, just practiced loading a python example to the >>>>> board. >>>>> >>>>> I didn't know that pulling the USB cable without turning the board off >>>>> via the Power button could corrupt the eMMC onboard. I understand I >>>>> should >>>>> have read the manual, but I think this information needs to be included >>>>> on >>>>> any "quick start" info provided to beginners. (If they tell you how to >>>>> turn >>>>> it on, shouldn't they tell you how to safely turn it off?) I have a lot >>>>> of >>>>> experience with Arduino and mistakenly thought that I could unplug the >>>>> BeagleBone from power without any other shutdown steps. >>>>> >>>>> So now, the board powers on and the user LEDs flash, and the board >>>>> shows up as an external storage device on my laptop. But the IP address >>>>> has >>>>> changed to 198.168.7.1, and any attempts to ssh either result in a >>>>> timeout >>>>> or require password authentication. And the default passwords provided on >>>>> Adafruit and other places are not working. >>>>> >>>>> So, my questions are: >>>>> • How do I know if I've corrupted the data in the eMMC? Will the board >>>>> act normally but not connect? >>>>> • If I can't ssh via USB, will I be able to do so via ethernet, or >>>>> should I just start over/do a restore of Angstrom? >>>>> • Is Angstrom stiil the default distro, or are the boards shipping >>>>> with Debian now? >>>>> • Is this possibly an El Capitan issue? I read a little about that, >>>>> but I downloaded and installed a HoRNDIS version that was supposed to fix >>>>> the issue. >>>>> >>>>> Thanks for your help - I'm really looking forward to learning how to >>>>> use this board and become part of the community. I build interactive >>>>> interfaces for musical performance and am excited about the possibilities >>>>> offered here. >>>>> >>>>> - Nate >>>>> >>>>> -- >>>>> For more options, visit http://beagleboard.org/discuss >>>>> --- >>>>> You received this message because you are subscribed to the Google >>>>> Groups "BeagleBoard" group. >>>>> To unsubscribe from this group and stop receiving emails from it, send >>>>> an email to [email protected]. >>>>> To view this discussion on the web visit >>>>> https://groups.google.com/d/msgid/beagleboard/bcdcae01-ee98-4900-b795-f5b372ded41f%40googlegroups.com >>>>> >>>>> <https://groups.google.com/d/msgid/beagleboard/bcdcae01-ee98-4900-b795-f5b372ded41f%40googlegroups.com?utm_medium=email&utm_source=footer> >>>>> . >>>>> For more options, visit https://groups.google.com/d/optout. >>>>> >>>> >>>> -- >>> For more options, visit http://beagleboard.org/discuss >>> --- >>> You received this message because you are subscribed to the Google >>> Groups "BeagleBoard" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to [email protected]. >>> To view this discussion on the web visit >>> https://groups.google.com/d/msgid/beagleboard/7b283842-bf9c-4ef9-9793-c9639d13810f%40googlegroups.com >>> >>> <https://groups.google.com/d/msgid/beagleboard/7b283842-bf9c-4ef9-9793-c9639d13810f%40googlegroups.com?utm_medium=email&utm_source=footer> >>> . >>> >>> For more options, visit https://groups.google.com/d/optout. >>> >> >>
-- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/0f0737f3-2a5b-4931-8a5a-6f582fcdc0fa%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
